{"product_id":"sewtech-144pcs-size-l-sa155-prewound-bobbin-thread-white-70d-2-60-weight-cottonized-soft-feel-polyester-thread-plastic-sided-for-commercial-home-embroidery-sewing-machines","title":"Sewtech 144pcs Size L (SA155) Prewound Bobbin Thread -White | 70D\/2 (60 Weight), Cottonized Soft Feel Polyester Thread, Plastic Sided, For Commercial\/Home Embroidery \u0026 Sewing Machines","description":"\u003cdiv style=\"max-width: 920px; margin: 0 auto; color: #1f2933; font-family: Arial, Helvetica, sans-serif; line-height: 1.65;\"\u003e\n\u003cdiv style=\"text-align: center; padding: 8px 0 18px;\"\u003e\n\u003cp style=\"margin: 0 0 8px; color: #137a43; font-size: 14px; font-weight: bold; letter-spacing: 0.08em; text-transform: uppercase;\"\u003eReady to stitch. Ready to produce.\u003c\/p\u003e\n\u003ch2 style=\"margin: 0 0 14px; color: #111827; font-size: 32px; line-height: 1.2;\"\u003e144 Ready-to-Use Size L Prewound Bobbins\u003c\/h2\u003e\n\u003cp style=\"max-width: 760px; margin: 0 auto; font-size: 18px;\"\u003eSkip the winding station and keep your embroidery moving. Sewtech Size L (SA155) bobbins arrive evenly prewound with white 70D\/2 (60WT) polyester thread for smooth, dependable everyday stitching.\u003c\/p\u003e\n\u003cp style=\"max-width: 760px; margin: 0 auto; font-size: 18px;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/5ee1a7cddddb46506011d8555cbc4ffb.png?v=1785836296\" alt=\"\"\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 0 0 14px; color: #137a43; font-size: 26px; line-height: 1.25;\"\u003eLess Setup. More Stitches.\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003eA consistent bobbin supply matters when deadlines are tight and designs are stitch-heavy. Each bobbin is precision wound in tightly packed layers to support an even thread feed, helping you spend less time preparing bobbins and more time finishing garments, patches, caps, gifts, and production runs.\u003c\/p\u003e\n\u003cul style=\"margin: 0 0 28px; padding-left: 24px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003e144-bobbin bulk box:\u003c\/strong\u003e Keep a production-friendly supply within reach and reduce interruptions between jobs.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eConsistent precision winding:\u003c\/strong\u003e Even, tightly packed layers support steady thread delivery and balanced tension during stitching.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSoft-feel polyester:\u003c\/strong\u003e White 70D\/2 (60WT) thread has a cottonized, soft hand suited to embroidery on garments and next-to-skin projects.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eClear plastic sides:\u003c\/strong\u003e Plastic flanges resist distortion and do not absorb machine oil, while the transparent construction makes organization and identification easy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEveryday white:\u003c\/strong\u003e A versatile bobbin-thread color for light fabrics, clean backs, lettering, monograms, and general embroidery or sewing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/prewound-bobbins-premium-style-1500x1500.png?v=1785836295\" alt=\"\"\u003e\u003c\/p\u003e\n\u003cdiv style=\"background: #f3f8f5; border-left: 5px solid #137a43; padding: 22px 24px; margin: 0 0 34px; border-radius: 6px;\"\u003e\n\u003ch3 style=\"margin: 0 0 10px; color: #111827; font-size: 24px; line-height: 1.25;\"\u003eSize L \/ SA155 — Check Before You Order\u003c\/h3\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003eThese are Size L (Style L \/ SA155) bobbins.\u003c\/strong\u003e They are not Size A \/ Class 15 \/ SA156 bobbins. Bobbin requirements can vary by model—even within the same machine brand—so compare the dimensions below with your original bobbin and check your machine manual before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 0 0 14px; color: #137a43; font-size: 26px; line-height: 1.25;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/3-title-edited.png?v=1785836295\" alt=\"\"\u003e\u003cbr\u003eProduct Specifications\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 38px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 16px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"width: 38%; padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eBrand\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003eSewtech\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eModel \/ SKU\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003ePB-W70-144L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eQuantity\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003e144 prewound bobbins\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eBobbin Size\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003eSize L \/ Style L \/ SA155\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eApprox. Dimensions\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003e20.5 mm diameter × 8.9 mm high (0.81 × 0.35 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eThread\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003ePolyester, 70D\/2, 60WT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eColor\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003eWhite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003eBobbin Sides\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003eClear plastic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\" style=\"padding: 12px 14px; border: 1px solid #d8e0db; background: #f3f8f5; text-align: left;\"\u003ePrimary Use\u003c\/th\u003e\n\u003ctd style=\"padding: 12px 14px; border: 1px solid #d8e0db;\"\u003eMachine embroidery and sewing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin: 0 0 14px; color: #137a43; font-size: 26px; line-height: 1.25;\"\u003eBuilt for Compatible Commercial Workflows\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003eSize L bobbins are widely used in multi-needle commercial embroidery workflows. These bobbins may fit compatible models from brands such as Brother, Ricoma, Happy, Tajima, BAI, ZSK, Melco, Barudan, and SWF, as well as selected home machines—but only when the specific model calls for Size L, Style L, or SA155.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/size-l-bobbin-three-machines-1500x1500.png?v=1785836295\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin: 0 0 14px; color: #137a43; font-size: 26px; line-height: 1.25;\"\u003eA Full Box for Busy Embroidery Rooms\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003eOpen the box, load a compatible bobbin case, and get back to stitching. The 144-piece format is easy to store and gives shops, studios, schools, and serious hobbyists a dependable supply for repeat orders and long designs.\u003cbr\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/bobbin-box-green-edges-with-text.png?v=1785836296\" alt=\"\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin: 0 0 14px; color: #137a43; font-size: 26px; line-height: 1.25;\"\u003eClean Support Behind Every Design\u003c\/h3\u003e\n\u003cp style=\"margin: 0 0 18px;\"\u003eThe fine 60WT white bobbin thread is designed to stay discreet beneath top-thread embroidery while supporting detailed fills, satin stitches, lettering, and decorative motifs.\u003c\/p\u003e\n\u003ch3 style=\"margin: 0 0 16px; color: #137a43; font-size: 26px; line-height: 1.25;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/new-embroidery-pattern-collage.png?v=1785836296\" alt=\"\"\u003e\u003cbr\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4 style=\"margin: 22px 0 6px; color: #111827; font-size: 19px;\"\u003eAre these Size A \/ SA156 bobbins?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eNo. This listing is for the shorter Size L \/ SA155 format. Size A \/ Class 15 \/ SA156 bobbins are taller and are not interchangeable in every machine.\u003c\/p\u003e\n\u003ch4 style=\"margin: 22px 0 6px; color: #111827; font-size: 19px;\"\u003eWill these fit my embroidery machine?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eThey are intended for machines that specify Size L, Style L, or SA155 bobbins. Verify your machine manual and compare the original bobbin dimensions before purchase.\u003c\/p\u003e\n\u003ch4 style=\"margin: 22px 0 6px; color: #111827; font-size: 19px;\"\u003eWhat thread is wound on each bobbin?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eEach bobbin is prewound with white 70D\/2 (60WT) polyester bobbin thread with a cottonized, soft feel.\u003c\/p\u003e\n\u003ch4 style=\"margin: 22px 0 6px; color: #111827; font-size: 19px;\"\u003eHow many bobbins are included?\u003c\/h4\u003e\n\u003cp style=\"margin: 0;\"\u003eYou will receive one box containing 144 prewound bobbins.\u003c\/p\u003e\n\u003ch4 style=\"margin: 22px 0 6px; color: #111827; font-size: 19px;\"\u003eWhy use prewound bobbins?\u003c\/h4\u003e\n\u003cp style=\"margin: 0 0 30px;\"\u003ePrewound bobbins remove the manual winding step and provide consistent, tightly packed layers. This saves setup time and supports smoother thread delivery from one bobbin to the next.\u003c\/p\u003e\n\u003cdiv style=\"text-align: center; background: #137a43; color: #ffffff; padding: 26px 22px; border-radius: 10px;\"\u003e\n\u003ch3 style=\"margin: 0 0 8px; color: #ffffff; font-size: 26px; line-height: 1.25;\"\u003eKeep the Next Stitch Coming\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 17px;\"\u003eStock your embroidery station with 144 precision-wound Sewtech Size L bobbins and spend more time creating—not winding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SewTech","offers":[{"title":"Default Title","offer_id":46813505781921,"sku":null,"price":22.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0621\/4208\/7329\/files\/5ee1a7cddddb46506011d8555cbc4ffb.png?v=1785836296","url":"https:\/\/maggieframestore.com\/products\/sewtech-144pcs-size-l-sa155-prewound-bobbin-thread-white-70d-2-60-weight-cottonized-soft-feel-polyester-thread-plastic-sided-for-commercial-home-embroidery-sewing-machines","provider":"MaggieFrameStore","version":"1.0","type":"link"}